A vehicle assembly includes a vehicle body including an interior panel, a seat having a frame fixed to the panel, and a seat energy absorber operably associated with the seat and including a backing and a bracket. The backing is formed from the vehicle body and positioned separated from the seat to define a space between the seat and the backing along a length of the panel, and the bracket is mounted in the space on at least one of the seat and the backing such that a proximal end portion of the bracket is located closer to the seat than the backing, and a distal end portion of the bracket is located closer to the backing than the seat. During a crash event a section of the panel is configured to collapse against the seat when the seat is driven toward the panel relative to the vehicle body.